Muchinyorwa chino, isu tichatarisa maverengero epamusoro nzvimbo yerectangular parallelepiped uye kuongorora muenzaniso wekugadzirisa dambudziko rekugadzirisa chinhu.
gutsikana
Area formula
Nzvimbo (S) yekumusoro kwe cuboid inoverengerwa sezvizvi:
S = 2 (ab + bc + ac)
Iyo formula inowanikwa seinotevera:
- Zviso zverectangular parallelepiped zvine rectangles, uye zviso zvakapesana zvakaenzana kune mumwe nemumwe:
- zvigadziko zviviri: zvine mativi a и b;
- zviso zvina kumativi: nerutivi a/b uye kureba c.
- Kuwedzera nzvimbo dzezviso zvese, imwe neimwe yakaenzana nechigadzirwa chemativi ehurefu hwakasiyana, tinowana: S = ab + ab + bc + bc + ac + ac = 2 (ab + bc + ac).
Muenzaniso wedambudziko
Verenga pamusoro penzvimbo ye cuboid kana ichizivikanwa kuti kureba kwayo 6 cm, yakafara 4 cm, uye kureba 7 cm.
Sarudzo:
Ngatishandisei fomula iri pamusoro, tichitsiva iyo inozivikanwa tsika mairi:
S = 2 ⋅ (6 masendimita ⋅ 4 masendimita + 6 masendimita ⋅ 7 masendimita + 4 masendimita ⋅ 7 masendimita) = 188 cm2.